CVE-2026-101043 (GCVE-0-2026-101043)

Vulnerability from cvelistv5 – Published: 2026-09-27 17:02 – Updated: 2026-09-30 15:47
VLAI
Title
pnpm 11.0.0 before 11.11.0 Environment Variable Exfiltration via Proxy Settings
Summary
pnpm versions 11.0.0 before 11.11.0 and 10.7.0 before 10.34.5 expand ${VAR} environment-variable placeholders in the httpProxy, httpsProxy, and noProxy settings read from a project's pnpm-workspace.yaml. Because the manifest is repository-controlled and the proxy keys were omitted from the request-destination key set that otherwise suppresses placeholder expansion for untrusted manifests (as already done for registry, pnprServer, registries and namedRegistries), an attacker who controls a repository's pnpm-workspace.yaml can cause a victim who clones the repository and runs a pnpm command (e.g. pnpm install) to expand environment secrets such as NPM_TOKEN or GITHUB_TOKEN into a proxy hostname or userinfo and route install traffic — and the corresponding DNS lookups — through an attacker-controlled host. The exfiltration occurs during configuration loading, before any lifecycle script executes. Fixed in pnpm 11.11.0 and 10.34.5.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:47 UTC
CWE
  • CWE-201 - Insertion of Sensitive Information Into Sent Data
References
Impacted products
Vendor Product Version
pnpm pnpm Affected: 11.0.0 , < 11.11.0 (semver)
Unaffected: 11.11.0 (semver)
Create a notification for this product.
pnpm pnpm Affected: 10.7.0 , < 10.34.5 (semver)
Unaffected: 10.34.5 (semver)
Create a notification for this product.
Date Public
2026-08-03 00:00
Show details on NVD website

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